Formula used
Area = length × width; order area = area × (1 + waste ÷ 100); square yards = order area ÷ 9
Worked square footage example
Square Footage Calculator example: 25.9 ft × 15.2 ft = 393.68 ft². With 10% allowance the order area is 433.05 ft², equal to 48.12 yd².
What the converted result represents
Use raw square feet for area reporting; apply waste and package coverage only when converting that area into a specific product order.
Limits of the geometric model
Wall offsets, columns, curves, measurement rounding, and whether openings should be included depend on the material takeoff that follows.
Questions specific to this calculation
Does square footage require a waste allowance?
Enter compatible length and width measurements for one rectangle. Break L-shaped or irregular spaces into rectangles and add their areas.